Air-control mechanism for carbureters



Q RCE. AIR CONTROL MECHANISM FOR CARBURETEHS.

APPLICATION FILED UCI. H, 1916 Patented Apr. 20, 19204 1,337,333. kij

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UNITED STATES PATENT OFFICE.

ORRIN RICE, OF LOS ANGELES, CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO U. S. GRANT HINTON, 0F PROVIDENCE, RHODE ISLAND.

Specification of Letters Patent.

Patented Apr. 20, 1920.

Application filed October 18, 1916. Serial No. 126,399.

To all whomy t may concern.'

Be it known that I, (')nnIN Rien, a citizen of'the United States, residing at Los Angeles, inthe county of Los Angeles and State of California, have invented certain new and useful Improvements in Air-Control Mechanisms for Carbureters, oi' which the following is a specification.

This invention relates to improvements in air control mechanisms for carbureters and has particular relation to means adapted to beinterposed in the hot air or other air inlet pipe used on certain wehicles for delivering air to the carbureter of the vehicle engine.

AIt is an object ol' the invention to provide an automatic air controlling mechanism for inlet pipes used for directing air to the intake of a carburetor.

It is also an object of the invention to provide as a new article oi' manufacture, a detachable throttle mechanism adapted to be removably inserted in air pipes leading,r to the intake of a carbureter.

It is a still further object ot' the invention to provide a detachable valve mechanism adapted to be inserted in the hot air pipcs'used with many vehicle carbureters, and which delivers warm or heated air taken from around the exhaust pipe of the engine, directing it to the air intake of the carbureter.

It is a still further object of the| invention to provide a new article of manufacture having a. casing adapted to fit in the hot air pipe connected with a carbureter, the said casing having a hinged. valve therein which is actuated by a weight or its equiva lent, a spring, for automatically controlling the' heated air delivered to the carbureter.

`With these and other objects in view, the invention comprises certain novel constructions, combinations, and arrangements ot parts, as will be hereinafter more fully described and claimed.

In the accompanying' drawing forming a part of this specication;

Figure l is a side elevation of a portion of a vehicle engine showing parts oi' the intake, and exhaust manifolds, and the carbureter connected with the intake manifold,

a hot air pipe being also shown for livering heated air from the exhaust ma iiold to the carburetor, a portion of the said pipe and oit' adjacent parts of the carbureter being broken away and shown in sectionto illustrate the automatic throttle mechanism in place within said pipe.

Fig. 2 is an enlarged longitudinal sectional view through the air controlled mechanism oi' the present invention showing the throttle valve Weighted.

Fig. 3 is a transverse sectional view through the same, and looking at the inside oi the valve.

Fig. 4 is a longitudinal sectional view through a. modified form oi' the device, the weight upon the valve being replaced by its eqn falent, a spring.

There are a number of motor vehicles in which warm or heated air is supplied to the air inlet of the engine carbureter, and there are many of these vehicles which employ a pipe having one end flaring and eX- tending over a portion of the exhaust pipe or manifold, while the other end thereof is inserted in the air intake opening of the carburetor, so that heated air is thus sup )lied to the carburetor for increasing the e ciency of the gaseous mixtures, which the carbureter delivers to the engine. It is the purpose of this invention to provide a controlling means which can be removably mounted in said pipe for automatically controlling the supply of heated air to the carburetor in accordance with the action of the engine. The device is a detachable one which can be readily inserted in the hot air pipes of many vehicles, which do not collie` equipped with any air controlling means for the carburetor.

'The details and features of the invention will non' be more specifically described, reference being had to the accompanyin drawing, in which 5 indicates an automo ile engine, G the intake manifold, 7 the exhaust manifold, and S .the carbnreter of an ordi nary motor vehicle, such for instance, as is commonly known as the Ford automobile. In many styles of automobiles, the action of the carbnreter is improved by the supplying of heated air to the carburetor intake. Thus as shown in the drawing, a hot air pipe 9 is used upon the type of vehicle shown one end being flared outwardly at l0, and clamped against the exhaust manifoiillu 1n any suitable manner, so that all air drawn the carbuileter. The improved device of the present invention comprises a casing 1,2 usually cylindrical, so as to be easily 1nserted in the end of the hot air pi e 9 as shown in Fig. l of the drawing. lhis cylinder 12 may be split as at 13, and made with. a slight springing action so that it will tend to spring outwardl to a slight extent when thrust into the endyof the pipe 9. The attachment is thus frictionally held in the pipe and yet is readily removable if desi y. Detente 14 are struck outwardly from the metal of the casing 12 to form limiting stopsfor reventing the insertion of the device lion` ar in the pipe. Within the casi ing 12 il n throttle valve 15, preferabl compricing'a disk, or other valve shape piece ofxnetala proximately fitting the contour of the sai will move freely therein. T he said valve 15 is pivotaily swung in any desired manner, and may be arranged as shown upon a rod or shaft 16, which passes through eyes 17 formed upon the valve, and has its ends secured in the walls of the casing 12, as clearly shown in Fig. 3 of the drawing.

The automatic action of the valve l5 is facilitated by a proper weifhting of the lower portion of the valve. hus as shown in Fig. 2, a weight 18 is placed upon the said valve near its lower e( ges. A stop 19 at the bottom of the casing limits the outward movement of the weighted portion of the valve. Instead of using the weight 1S at the lower part of the valve, a light spring 2.0 may be a plied to the upper portion of said valve aliove the shaft 16, one end of which is connected with the valve while the other is secured at 21 to the casing. lhe

' stop for said valve may also be set inwardly from the end of the casing 2l as indicated at 22, in order to hold the valve in a slightly inclined position.

The detachable throttle mechanism as above described is easily inserted in the pipe 9, the pipe being first loosened from-the carbureter, after which it is replaced again. The air entering through the hot air iipe is thus automatically regulated., By tlie use of the device, the motor vehicle can he throttled down to a very slow speed on the high gear, and it is found that the vehicle when using this device can be more readily accelerated and will start easier and climb hills better than when the attachment is taken ont of the pipe. A material saving of fuel is also eilected.

casing 1 2, but so loose ,thatnit- It will he readily understood thi-at this de- 4vice may be inserted in the hot air pipe-of any vehicle where the heated `iir is delivered to the rarbureter. whether the device 1s equipped with any ront rolling means or not. 7o

ln some o'f'the more common t 'pes of cars, such for instance, as the For( the carbureter is provided with a hot air pipe as 9, and the action of the motor can be very,

much improved by disconnecting the p ipe 9,75

and inserting the air controlled device as above des:-ribed. It will be evident that the size-of the casing and the valve may be altered for use in hot air pipes of any size within the spirit and scope of the invention. so

It will also be seen that the air controlled device may be inserted in the inlet air paS- sage of any rarhureter on any typefof auto-V mobile in which the casing will fit. The

action of the throttle valve mounted in the rasin is entirely automatic. When the engine is throttled down, the weight or s ring will tend to prevent the entrance o any excess of air, permitting a sufficient amount to pass through the carbureter for keeping the engine running. When the engine 1s accelerated, the readily movable throttle will open more and more permitting an ample supply of air to be drawn in, and not interfering in any way with the introduction of air in suiirient quantities for the high speeds of which the engine is capable.

What Ais claimed is:

1. In combination with a carbureter and air air supply pipe connected thereto, a gas lOl saver comprising a shell adapted to be inserted bodily into said air pipe at its connection with said carbureter, means for limiting the distance said shell can be inserted into the end of said pipe, a valve member 105 it in place in the intake pipe, a valve placed transversel across the interior of the shell suhstantiallyl closing the passageway there` through, and means normally to hold said valve closed.

gassavcr adapted for use in a rarhu- 120 reter, having an air intake pipe, embodying a shell insertihle into said intake pipe, means for limiting the distance lthe shell can he inserted into the air intake pipe, a valve placed transversely across the interior of the shell substantially closing the passageway therethrough, and. means normally to hold said valve closed.

4. A gas saver adapted for use in a carbureter, having an air intake pipe, embodying a shell insertihle into said intake pipe', the shell being split longitudinally and resiliently expansive to expand in the intake pipe and thus hold itself in place, means for limitingl,r the distance the shell canv be inserted into the air intake pipe, a valve placed trans rvrsely across the interior of the shell substantially closing the passageway therevalve dosed.

In testlmony where my hand, in presence of t Witnesses D. l. KENDRICK,

J. H. STluNE.

of, l have hereunto set Wo witnesses.

URRIN RICE. 

